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1by Chezar, Henry“...U.S. Geological Survey ;...”
Published 2000
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2by Schmidt, Kevin Michael, 1966-“...U.S. Geological Survey,...”
Published 2006
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5by Dudash, Stephanie L.“...U.S. Geological Survey,...”
Published 2006
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6by Bedford, David R.“...U.S. Geological Survey,...”
Published 2006
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8by Amoroso, Lee“...U.S. Geological Survey,...”
Published 2006
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9by Childs, Jonathan R.“...U.S. Geological Survey,...”
Published 2006
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